Indicating device for use with pneumatic tires.



TA: PM SLOPER. INDIGATING DEVICE FOR USE WITH PNEUMATIC TIRES APPLIOATION FILED 0912a, 1907.

Patanted 25011.3,119Q8.

4 SHEETS-SHEET 1.

a: SLGPERQ DIDIGATIIIG DEVICE USE WITH PNEUMATIU TIRES.

- AJEILICATIQE'PILED 0OT.5, 1907. j'

' mmma m a, 11903.

Hams-4mm? 2.

T, & R" SLGPER. INDIGATING DEVICE FOR USE WITH PNEUMATIC TIRE.

APPLICATION FILED 00T.5, 1907,

Faten'tefi NW. 3, 3998.

4 SHEETS-SHEET 8.

T. (i: R SLQPER. INDIUATING DEVICE FOR USE WITH PNEUMATIC TIRES.

' APPLICATION FILED 0012s, 1907.

"@,@93 Patented Nov, 3, 1908.

4 SHEETS-SHEET 4.

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purpose of putting a torque upon the spring and then'the pin inserted to retain the spring under tension. The head 0 is screw-threaded to receive a cap 0 whereby the pin is prevented from displacementl Normally he arm C is in the position shown in Fig. 1 and when in this position the lug C lies to one side of the stop or' in B on the plate B and the spring C ten s to ad Vance the arm ast the stop, that is, to move it laterally of t e wheel in a clockwise direction, see Fig. 3; in this ii are the armhas been advanced into the latera position.

Secured to any convenient part of the vehicle by a rod F is asounder F. This is conveni'ently formed of a 100 of Wire, the ends of which are bent roun into the vform of irals as at F and secured to 9. lug F fast on t e s indle.

' en the arm or striker O is in the inoperative position already referred to (Fig. 1) it does not come into contact with the sounder F but when moved laterally into the position shown in Fig. 3, it strikes the sounder F at each rotation of the wheel and thereby gives an audible signal to the driver of the vehicle.

The release of the am 0 is eifected as follows: The parts I), D and D constitute a lever which, to all intents and purposes, is hinged to the plate B at (Z. When the tire becomes defiatel, that part which is in contact with the road expands laterally, and in so doin comes into contact with and displaces t e end D of this lover. The lever thus turns upon itsfulcrum d and in so doin displaces in. a radial direction the arm 0 an compresses the spring 0 This movement has a two-fold. function, (a) to loosen the arm and spring in case these parts should have become clogged. with dirt and (b) to lift the arm C above the stop B so that it is free to advance laterally relatively to the wheel under the action of the spring 0 The arm has a sto C which engages a pin lid carried by the ate I) hereby the angularmovement of t 1e arm is limited so that it is finally brought bythe spring into a position approxin mtcly at right angles to the plane of the wheel.

The spring U is preferably arranged to advance the arm 0 towards the sounder F so that the spring atl'ords a yielding support for the arm in order that the latter may give as it strikes the sounder F The coiled ends F of the sounder F also serve to render this member resilient and this is of special. utility should the car be reversed While the arm C .is in theoperative position, as in such case the arm being against the in B would be unyielding so that the soun er F would have -tion it wouldv ta I I eral expansion of the tire owing to deflation,

scenes in order that the distance at which it is set from the tire may be adjusted, but it will be understood that thisadjustment may be dis' Instead of the arm C having a lug C which engages a stop B on the plate B, it will be seen that this arm, the equivalent of which is shown at G (Fig. 5) may carry a pin Gr arranged to engage arecess G in the upper face of the plate H which corresponds to the plate 1) (Figs. 1 to 4).

In Fig. 5 the e whenoperat'ed by the latthat is to say, it is tilted about the fulcrum H and consequently has forced back' the arm G against its s ring. This has the effect of lifting the pin 1 out of the recess in the plate H and thus the arm is allowed to turn under the action of its spring until its luq' G is arrested against the sto H on the base plate H. Again, instead 0 the pin in the arm enaging thep late or lever H it may engage the ed plate L (Fig. 6). In this figure the pin L is carried in the arm L in such position that it clears the plate or lever M but enters a recess in the late K. When the lever M is raised as has een described with reference to the lever D D D the pin L is lifted out of its recess and thus the arm L is allowed to swing round until the in comes into contact with the face M of t ,e lever M. This ar rangem'ent is the chea est to construct as it contains fewerparts, t e pins or lugs B and B being bothdispensed with and if the lever M be made in one iece instead of having an adjustable end suc 1 as D (Figs. 1 and 4) the number of arts is .still further decreased. The lever H. in Fig. 5 is shown thus constructed in one piece. V

The sounder F or its equivalent instead of being secured. to some part of the vehicle such as the frame of the chassis can, if desired, be secured to the mud uard of the wheel and it may be constructed in any suitable manner for this purpose. In this case the mud guards of the car act as resonators and considerably augment the sound.

Without limiting ourselves to the exact de tails of the construction of apparatus illustrated, what we claim'as our invention and desire to secure by Letters Patent is 1. In a deflation indicator the combina' tion with. a road wheel of a vehicle and a nonrotat ng partoi the vehicle, of a sounder carried by-one of said elements, a striker carried by the other elem out and free to be advanced into the path of the sounder, means for nor maily retaining the striker free of the sounder, a pneumatic tire on the wheel, and means,

adapted "to be operated by excessive lateral 1plate'll is shown in the posideformation of the tire, for displacing the striker and moving lb into the path of the sounder, substantially as setforth, Y

2. In a deflation indicator the combina" tion with a road wheel of a vehicle and a non rotatingpart of the vehicle, of a soundercarried by one of said ele1nents,a loaded member carried by the other element and tending always to advance into the path of the sounder, a catch that normally retains the loaded member free of the sounder, a pneumatic tire on the Wheel, and means for utilizing excess ive lateral deformation of the tire to impart relative movement to the catch one loaded member for the purpose of releasing the latter, substantially as forth.

3. In a deflation indicator the combination with a road "wheel ol a vehicle ani'l a nonrotating part of the vehicle, of a sounder carried by one said elements, it striker carried by the other element and free to be advanced.

into the path of the sounder, means for norniallyretaining the strilrei'free of the soinider,

a pncuin atic tire on the wheel, rneans, adapted to be operated by excessive lateral deformation of the tire, for displacing the striker and moving it into the eth or the sounder, and a stop to limit t e egree of displacen'ient of the striker, sub initially as set forth.

4. In a deflation indicator the combine tion of, a vel' frame, a road-wheel, a sounder carried by one or said elements, a loaded member carried by the other eleinea and tending always to advance into the of t e sounder, a catch that iptains the loaded member free of the sounder, a pneumatic tire on the wheel, and. means, adapted to be operated by excessive lateral deformation of the tire, for impar'ing rclative movement to the catch and loaded more her to release the latter, such means being so arranged that the loaded member and its co oporating parts are positively shifted prior to the release for the purpose set forth.

5 In a deflation -i-ndicator 'the combination of, a vehicle 'i'i'arne, a roadwvhecl, a

sounder carried byone ol 'these clernents,.a spriugwontrolled lover pivoted to the other clcnient and tending always to advance into the path of the sounder by turning about its pivot, the lever being also niovable along its pivot, a stationary catch that norm ally retains the lever free of the sounder, a pneumatic tire on the Wheel, and means for utilizing excessive lateral deformation of the tire to dis-- place the lever along its pivot until it is free of the catch, substantially as set forth.

6. in a deflation indicator the conil'iination of, a vehicle frame, a r ad\vhecl, a sounder carried by the frame, an approxinnitely radial stud carried by the wheel, a lever pivoted to this stud, a spring that tends always to advance the lever into th path of the sounder by. turning it upor its pivot, a catch that normally retains the lever free of the sounder pneumatic tire on the Wheel, and means for utilizing excessive lat arid i'lol orniation of the tire to impart-relativc movement to the catch and lever for the purpose set fortin 1 (7. in a deflation indicator the combination of, 'a vehicle frame, a r adhccl, a sounder carried by the frame, an approxilnatelv radial stud carried by the Wheel, a lever H otally carried on the stud and also lnovuhl along the same, a spring carried by the stud to no'rnmlly ttain the lover at one end thereof and also to advance the same in a rotary d rection into the path oi the sounder, a Catch t at normally prevents rotary niovernent of lever and thus retains it free of the sounder, a pneumatic tire on the Wl'icc'l, and means for utilizing excessive latcraldclornnitiou of the tire to move the lever along: the pin aga it the action of its spring until lrce oi the catch, for the purpose set it is lo: 12

tion of, a vehicle frame, a ro;ul-\vhecl, a

sounder carried by the frame, an approxe the sounder, a pneumatic tire on the wheel,

an o ating nunnber 1 roe to swing about an axis approximately at right angles to that alimut which the spring controlled lever turns and having engagement With the lever, one portion oi the operating member being situated. in proximity to the side of the tire so that excessive lateral deformation oi the latter displaces this member and causes it to move the pivoted lever along its pin until free the catch, for the purpose set forth.

9. In. a deflation indicator the combination oi, a vehicle frame, roadwvheel, a sounder carried by the frame, on approximately radial stud carried by the road-Wl'ieel, a lever pivotally carried on the stud, and also movable along the smile, a spring carried by the stud V to normally retain the lever at one end thereor" and also to advance the saline in a rotary direction. into the path of the sounder, a catch that norn'ially prevent-s rotary move ment of the lever and. thus retains it free of the striking piece, at pneumatic tire on the Wheel, an. operating n'ieinber free to swing about an axis approximately at right anodes to that about which the spring control lever turns and having engagement with the lever, and an adjustable end portion (1)) secured to the operatin member and situated in proximity to the sic e of the tire so that excessive lateral detorniation or the tire imparts movement to the operating member led set forth. I

y 10. In. a'del'lation indicator the combine? tion of, :i' vehicle frame, a road -wheel, a sounder carried by one of these elements, a

loaded member carried by the other element and tending always to advance into the path of the sounder one of said cooporatin members bein resilient so that when broug it into contact tiey'can pass each other, a catch that normally retains the loaded ,yneniber free of the sounder, a pneumatic tire on the wheel, and means for utilizing excessive lat eral deformation of the tire to impart relative movement to the catch and loaded member substantially, as set forth.

11.In a deflation indicator the combination of, a vehicle frame, a road-wheel, a sounder carried by the frame, an approximately radial stud'carried by the road wheel, a pneumatic tire on the Wheel, a bell-crank lever one arm of which takes over the stud and bears against a suitable support that lies a proximately parallel to the inner face of the rim of the roa'davheel, the other arm of the lever extending down into proximity to the side of the tire so that it is displaced by excessive lateral deformation of the tire,

being tilted upon the extremity of that arm that takes over the stud, means to prevent rotary movement of the bell-crank lever about the stud, a lever Yivotally carried on is free of the catch, substantially as set forth.

, 12.; The combination with a Wheeled ve;

hicle,"of 'a deflation indicator corn rising a sounder and a striker, one of the cal devices e along the same, a

. ceases:

and causes it to displace the pivoted lever being adjustably mounted on a wheel of the until it s free of the catch, for the purpose vehicle and adapted when in one position to contact with the other at each revolution of thewheels, a pneumatic tire onfsaid' wheel, means for normally maintaining said adjustable device in position where it will not"contact with the other as the wheel rotates, and

means adapted, under excessive lateral defl orniation of the tire, to shift said adjustable device to operative position, i

1.3. The combination with'a wheeled ve hicie, of a deflation indicator com rising a sounder and a striker, one of sai devices being adjustably mounted on a wheel of the vehicle and adapted when in one position to contact with the other at each I'GVOlUtiOll of the wheel, means constantly acting to 110?.

the ad ustable device in such operative POSI- tion, a pneumatic tire on said wheel, means for normally locking said adjustable device in position where it Wlll not contact with the other as the u'heelrotates, and means for antomatically releasing said'adjustable demos and permitting it to move to operative psition when the tire is deflated sufficient fvgto j cause an undesirable lateral \d forrnatica thereof.

14. The combination with a wheeled vehicle, of a deflation indicator com rising sounder and a striker," one of said devices being pivotallv mounted on a wheel of the vehicle and adapted when in one position to contact with the other at each revolution of 

